I use my own rules to filter spam emails. I use Alpine email program.
Consider the following header of a recent spam email.
What are the best way to write a filter to mark this email as a junk in such ...

I'm planning a Mailman server, and looking for a good way to enable list moderators train a spam filter (likely to be either spamassassin or dspam). Has anyone come up with a good way to run training ...

I have a server that hosts several websites. Each website has is own newsletter cron.
I know that there are more important things (envelope sender, spf record, ecc..)
but i would like to know if the ...

I am trying to send an email from my server using Mailgun. It's a very basic plain text email but for some reason it is ending up in spam. SPF and DKIM passes. Any ideas? I don't have any clue. This ...

We have successfully installed RBLDNSD with the idea of having a custom RBL server.
Now we have started to make some testing adding some IPs to the our blacklist,
and also have configured Exim (Cpanel ...

I was studying and searching 2 days about how to configure my exim/spamassassin/clamd configuration.
I have the next situation:
I have an email a@domain.com redirected to a@gmail.com.
Unfortunately, ...

How can I add several custom "bad" words into SpamAssassin, so emails that contains that words are marked as a spam?
UPDATE
one of the keys is to edit file /etc/mail/spamassassin, and to add badword ...

We are trying to send out a mass email for a client of ours through a third party sender and it is always being sent to the spam folder rather than the inbox. I have below the headers from the email.
...

Our PTR records are managed by our ISP, as our ranges are too small for them to consider delegating to us. So, every time I want to update an entry, I have to email their support team.
In an effort ...

I'm looking to setup a Spam Filter Proxy for my clients, not too many mind you, and have it as transparent as possible.
I read about SAVASM and Spam Vigilante, and while they are perfect I guess for ...

I had to black list some IPs that were coming from Russia from accessing my site. (Malicious bots kept taking my server down.) I created a text file that I loaded into RAM which contains /8, /16, /32, ...

I am looking for comparison of enterprise level spam filtering solutions in the context of Barracuda Filtering - pros and cons kind of summary.
I did hear a lot of negative noise about Barracuda Spam ...

We are running exchange 2010 and are using the built in anti-spam feature.
We have set up Content Filtering, IP Block List Providers, Sender ID, Sender Reputation and it filters out most of the junk ...

In case anyone isn't aware, the new Office 2007/2010 files are actually a type of archive file.
Since deploying some recent (ish) Microsoft updates to our client machines, we've been getting lots of ...

Linux DNS networking question:
If an MX record points to IP address 111.111.111.111 and A record of a domain points to 222.222.222.222, can I still send emails from 222.222.222.222 on the behalf of a ...

I've had users sending copyrighted files (songs, videos) to each other over email. I blocked the file extensions .mp3 etc. What some users have done is to rename files to .doc etc.
I cant block .doc ...

Client filtering in Outlook 2010 is disabled when the server is managing spam filtering. Unfortunately I have a few high profile users that prefer to spam-block mailing lists rather than unsubscribe, ...

In the last few months my mail server has been getting massive amounts of spam from yahoo.com's mail servers. Each one appears to be from a different Yahoo mail free account.
The spam is all coming ...

I've been running an amavisd-new, spamassassin, postfix setup for a while to help crush spam on our incoming e-mail servers. The setup I'm using is a few years old at this point and its about time to ...

I just switched email service provider from Google apps to a VPS with a Hong Kong host. Now I find a huge part of all outgoing emails ending up in spam boxes and in some cases getting totally rejected ...

After some discussions with colleagues and the relevant depts. in my office, I have come to the conclusion that for my Postfix server, I must implement a 'before-queue' filtering. The reason is that ...

I have a small system that sends about 15 email/day to my personal email account. I have set up the web form so that the users email is set as sender when I send the email to my inbox so it's easy for ...